Customized centrifugal rolling mill casting Steel spools

Product description
The steel spool's requirements for quenching temperature is different according to the different raw materials. Our company provides the following materials for reference.
Material composition comparison
Elements
Materials
C
Si
Mn
Cr
Ni
Mo
v
S,P
Introduction
ZG310-570
0.50
0.6
0.90
≤0.040
Low plasticity and toughness, low temperature resistance, low purchasing cost.
35CrMo
0.32-0.40
0.17-0.37
0.40-0.70
0.80-1.10
0.15-0.25
≤0.035
High strength, toughness and hardenability, high temperature resistance, low purchasing
35CrMov
0.30-0.38
0.17-0.37
0.40-0.70
1.00-1.30
0.20-0.30
0.10-0.20
≤0.035
Better than 35CrMo performance, and can meet the general use requirements, low price.
35NiCrMo
0.30-0.37
0.6-0.9
0.40-0.90
0.40-0.90
0.60-0.90
0.40-0.50
≤0.035
High strength and toughness, high temperature resistance, high procurements cost
KCP-12
0.20-0.30
≤0.60
0.90-1.10
0.40-0.90
1.00-1.50
0.30-0.50
≤0.040
High strength and toughness, high temperature resistance, high procurements cost
Machining proces
Product advantages
(1)with good metal retraction and dense and the mechanical properties. Centrifugal casting roughcast will not be cracks, scum stoma and sandstone in its inner and outer surface
.
(2) The sleeve increased plasticity and toughness after quenching & tempering, and Improve yield strength and tensile strength, reduce elongation.
(3)Use the special tool to process end face, taper and the outer circle according to inner hole to ensure beating of the taper, the concentricity and cylindricity of the steel spool.
Heating treatment of steel spool
Basic process of heat treatment-------- annealing, normalizing and tempering.
(1)Annealing
Annealing is to heat the steel spool to the appropriate temperature and then slowly cool the steel sleeve to achieve or close to the equilibrium state.
(2)Normalizing
Normalizing is making steel spool cool after it reaches suitable temperature, the effect of normalizing is similar to annealing, commonly used to improve the cutting performance of material, also sometimes used for low requirements for some parts as the final heat treatment.
Material
Strength of extension(MPa)
Yield strength(MPa)
Ductility(%)
ZG310-570
570
310
≥17
35CrMo
≥985
≥835
≥12
35CrMoV
≥1080
≥930
≥10
35NiCrMo
≥830
≥660
≥8
KCP-12
≥1080
≥835
≥8
Main equipments
Inner hole processing equipments
Key groove processing
Dynamic balance test
Inspection
(1)Sampling inspection after raw materials into the factory: appearance inspection, component analysis --- rough processing after it is qualified.
(2)The first inspection will be taken in the process of production -- self-inspection in each process -- -final inspection before the next line.
Packing & Shipment
The package would be according to customer requirements , and it is coated with anti-rust oil. it would be rolled by plastic cloth and the grass ropes.
It is delivered by a whole lot, with measures of anti-collision without other goods. Besides, it also can be packaged and shipped according to export standard.
Please freely inform me in case of any inquiry. We will answer you in 24 hours. thanks!